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d. Records of startups, shutdowns, and malfunctions shall be maintained, as required under § 60.7. <br />This Tier I engine was manufactured and certified to meet the emissions requirements of NSPS <br />Subpart IIII. The source provided fuel certification records following the inspection which <br />demonstrated that only compliant ULSD fuel is fired in the engine. The source is in compliance <br />with the requirements of NSPS Subpart IIII. The source is also in compliance with all requirements <br />of Subpart A, General Conditions. <br />11. Operating Permit (OP) requirements shall apply to this facility at any such time that this source becomes <br />major for OP solely by virtue of a relaxation in any permit limitation. Any relaxation that increases the <br />potential to emit above the applicable OP threshold shall require submittal of and issuance of an operating <br />permit, under Regulation No. 3, Part C. <br />There have been no relaxations in permit requirements. As noted under Permit 09GU1382 <br />Condition 14, the facility has VOC emissions above Title V Operating Permit applicability. This <br />engine would need to be included in any future Title V permit application and OP. Therefore, as <br />the facility is major for OP but has not reported mine VOC emissions or obtained the appropriate <br />permits, MCC is NOT in compliance with this condition. <br />Permit Number 13GUI462 — AIRS Pt 022. Pneumatically loaded rock dust silo. The Final Approval version of <br />this permit was issued on March 11, 2014. The source was later issued a final approval version of the permit <br />(Permit 1OGUI 130 Issuance 3) on March 24, 2016 which included increased monthly and yearly rock dust <br />throughput limits. However, because the 2014 final approval version was in effect at the time of the inspection, <br />that permit is used below for compliance determination purposes. <br />EMISSION LIMITATIONS AND RECORDS <br />1. Emissions of air pollutants shall not exceed the following limitations (as calculated using the emission factors <br />included in the Notes to Permit Holder section of this permit). Monthly and Annual records of the actual <br />emission rates shall be maintained by the applicant and made available to the Division for inspection upon <br />request. (Reference: Regulation No. 3, Part B, Section II.AA) <br />Monthly Limits: <br />Facility <br />Equipment <br />ID <br />AIRS <br />Point <br />Lbs per month <br />Emission <br />Type <br />PM <br />PMio <br />PM2.5 <br />NOX <br />SO2 <br />VOC <br />CO <br />Rock Dust <br />Silo <br />022 <br />40.4 <br />22.2 <br />22.2 <br />-- <br />-- <br />-- <br />-- <br />Point <br />The monthly limits included in this permit were derived from the Annual limits divided by 52 weeks per <br />year. <br />Annual Limits: <br />Tons per Year <br />2015 Inspection AN <br />0510015-INSP-2015 Page 23 of 37 <br />